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Central Europe’s nuclear plans – fraught with problems

CENTRAL EUROPE’S NUCLEAR PLANS: HOT STUFF

Claudia Ciobanu, Edit Inotai, Tim Gosling and Nicholas Watson, Budapest, Prague, Warsaw, BIRN. June 20, 2023  https://balkaninsight.com/2023/06/20/central-europes-nuclear-plans-hot-stuff/

Since the war in Ukraine, CEE countries have stepped up efforts to build more nuclear power plants and reduce nuclear supply chain dependency on Russia’s Rosatom. Yet the disposal of waste remains an issue and could impact financing of new reactors.

Central Europe has put nuclear power at the forefront of efforts to quit Russian oil and gas and decarbonise economies, yet breaking the region’s dependency on Russia’s giant nuclear holding company Rosatom – for fuel, financing and waste disposal – promises to complicate those efforts.

The region’s reliance on Rosatom is historic. Until last year, all 14 reactors operating in Czechia, Hungary and Slovakia were built by Russia (Slovakia’s third reactor at Mochovce, of Soviet design but not built by Rosatom, started up this year). Furthermore, Rosatom is building two more reactors in Hungary.

That latter project, thrown into some disarray by the war in Ukraine, epitomises this longstanding dependency. Rosatom dominates the global nuclear industry because of its ability to act as a “one-stop nuclear shop”, which is attractive to countries because it can finance the plant; build the plant; provide training, support and maintenance for the plant; dispose of the nuclear waste produced at the plant; and finally decommission the plant.

While Europe is taking steps to reduce its 30 per cent reliance on Russian nuclear fuel – Czech energy company CEZ has signed contracts with US-based Westinghouse Electric Company and French company Framatome – waste disposal will be a much harder nut to crack.

Nuclear energy produces mainly low-level radioactive waste, while high-level radioactive waste, which includes the hot spent fuel, accounts for about 1 per cent of total nuclear waste. Most of this spent fuel – over 60,000 tonnes stored across Europe – is kept in cooling pools located within or near the plants that generated it.

Last year’s EU taxonomy of what it considers green energy makes having existing disposal facilities for low-level waste and a detailed plan to have in operation by 2050 a disposal facility for high-level radioactive waste strict requirements for any new nuclear energy projects to qualify as sustainable investments – a definition needed to keep down the huge financing costs of new reactors. In addition, the technical screening criteria for nuclear energy prohibit the export of radioactive waste for disposal in third countries.

While there are many existing disposal facilities for low-level waste dotted around Europe, Finland is the only country currently constructing a permanent disposal facility for used fuel, the deep geological repository (DGR) under construction at Olkiluoto, which is scheduled to be operational around 2025.

From Rosatom with love

Hungary is pretty much stuck with Rosatom, most experts in Hungary believe. They tend to praise the technology and cooperation provided by Russia, though most are aware that political realities have significantly changed since the war in Ukraine. Yet restructuring the current Paks 1 power plant (four VVER440 reactors) and replacing Rosatom as the main contractor for Paks 2 (two VVER1200 reactors) is regarded as a non-starter by most industry experts. If the EU slaps sanctions on Russia’s nuclear industry, a move currently being debated, it would cause major difficulties for Hungary.

Rosatom is Hungary’s sole provider of nuclear fuel, which since the war in Ukraine began has had to be airfreighted to Hungary across Belarusian and Polish airspace. “The fact is that Russian nuclear fuel is both technologically and economically excellent,” Tamas Pazmandi, head of the Radiation Protection Department of the Centre for Energy Research, tells BIRN.

Pazmandi admits that diversification of the nuclear supply chain is probably necessary, but warns it will take longer than many might hope or expect. “Replacing Rosatom with another supplier would require years, due to the complicated process of development, production and licensing. In a best-case scenario, it would be possible around 2026-2027,” he explains.

Others point out that currently no alternative fuel is even available for the VVER440-type reactors, dismissing speculation that Westinghouse or Framatome could offer an immediate alternative to Rosatom.

Even for the Paks 2 project, where construction work has not started, a switch to a different company would mean starting again from scratch. “If you want to buy a Mercedes, you don’t ask Volvo to manufacture it – it is an entirely different car,” Pazmandi says by way of example. “It is the same with nuclear power plants. This is a Russian-designed plant, with all its licenses. On the supplier level there are possibilities for diversification, but the main design and the main contractor cannot be replaced or you will have a completely different project.”

Government-close experts like Otto Toldi from the Climate Research Institute have argued that Rosatom holds another unique advantage: it takes care of the nuclear waste, which none of its rivals can do. Yet this, it turns out, is not actually true: although the original contract between Hungary and the Soviet Union in the 1980s included a paragraph about the repatriation of nuclear waste, that ceased in the mid-1990s on Russia’s request. When Hungary joined the EU in 2004, it came under Euratom regulations, which basically forbids the export of nuclear waste. Spent fuel is now stored for five years in a cooling pond on-site, and then put in a dry storage facility. Last year, an International Atomic Energy Agency (IAEA) team of experts reported that, “Hungary is moving ahead in the development of a deep geological disposal facility for high level waste.”

Media friendly to the government, however, have been speculating that Rosatom could offer in the case of the Paks 2 project to take back some of the spent fuel and recycle it. Remix technology, which was tested in the Balakovo nuclear power plant in southwest Russia, is based on extracting uranium and plutonium from spent fuel and converting it into new fuel rods. The recycled fuel rods could then be used for nuclear fuel, with the remaining waste sent back to Hungary. Western companies can offer similar technology, called MOX fuel (mixed oxide fuel, consisting of plutonium blended with uranium), with France being one of the pioneers in Europe.

Hungary’s only real alternative to Russian-built reactors would be small modular reactors, or SMRs. Though touted as the future of nuclear energy, the technology is still in its infancy: there are only three SMRs operational in the world – in Russia, China and India – with three under construction and another 65 in design. Hungarian Energy Minister Csaba Lantos said recently SMRs are a viable option for the future.

“In an ideal situation, one-third of Hungary’s electricity demand would be covered by a regular nuclear power plant, one-third by SMRs and one-third by renewables,” Pazmandi says.

June 21, 2023 - Posted by Christina Macpherson | EUROPE, politics international, wastes